Physics, 11.03.2020 02:20 redbenji1687
Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.9 m diameter and a mass of 270 kg. Its maximum angular velocity is 1600 rpm. A. A motor spins up the flywheel with a constant torque of 59 N*m . How long does it take the flywheel to reach top speed? B. How much energy is stored in the flywheel? C. The flywheel is disconnected from the motor and connected to a machine to which it will deliver energy. Half the energy stored in the flywheel is delivered in 2.4 s. What is the average power delivered to the machine? D. How much torque does the flywheel exert on the machine?
Answers: 2
Physics, 22.06.2019 10:00
This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !
Answers: 1
Physics, 22.06.2019 17:00
Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.
Answers: 3
Physics, 23.06.2019 05:00
Acid rain is caused by human activity. select the best answer from the choices provided t f
Answers: 2
Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel...
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